{ "id": "cdda4b9c3d3dd73ddd62a168753eb659e20b032e", "text": "METEOROLOGICAL JOURNAL,\n\nKEPT BY THE ASSISTANT SECRETARY\n\nAT THE APARTMENTS OF THE\n\nROYAL SOCIETY,\n\nBY ORDER OF\n\nTHE PRESIDENT AND COUNCIL.\n\nMDCCCXXVIII.\n## METEOROLOGICAL JOURNAL FOR JANUARY, 1828.\n\n| 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches, Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks. |\n|-----------------|-----------------|----------------------------------------|----------------------|-----------------------------------|-------------------------------|----------|\n| Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. | Self-registering. | Rain. |\n| 1 | 29.531 | 44.7 | 29.379 | 45.8 | 45 | 45.8 | 46.6 | 38.2 | 46.6 | 0.044 SE | Overcast and foggy. Showery. |\n| O | 29.893 | 43.0 | 29.740 | 43.7 | 38 | 37.7 | 43.2 | 36.0 | 49.2 | 0.522 WSW | Overcast. Showery. |\n| 3 | 29.439 | 46.7 | 29.582 | 47.7 | 45 | 45.4 | 43.8 | 37.2 | 46.8 | 0.128 WSW | Fine and cloudless. Showery. |\n| 4 | 29.853 | 42.3 | 29.656 | 44.8 | 37 | 37.1 | 39.6 | 34.3 | 42.3 | SW | A.M. Fine—light clouds. P.M. Heavy rain—brisk wind. |\n| 5 | 29.625 | 40.7 | 29.615 | 41.3 | 35 | 35.0 | 35.7 | 32.6 | 35.8 | 0.283 SW | Cloudy—continued snow, with rain. |\n| O | 29.702 | 40.2 | 29.796 | 40.7 | 36 | 36.3 | 37.0 | 34.4 | 37.7 | 0.261 ESE | Lightly overcast—foggy. |\n| 7 | 29.963 | 39.3 | 29.923 | 39.3 | 34 | 35.3 | 35.0 | 32.6 | 35.3 | ESE | Overcast and hazy. |\n| 8 | 29.868 | 37.3 | 29.899 | 38.7 | 27 | 34.3 | 36.8 | 32.7 | 36.8 | NNE | Hazy. A.M. Overcast. P.M. Cloudless. |\n| O | 30.004 | 36.7 | 29.950 | 36.6 | 30 | 33.2 | 32.1 | 32.1 | 32.3 | SSW | Overcast and foggy. Light fall of snow at night. |\n| 10 | 29.710 | 34.6 | 29.628 | 36.2 | 27 | 30.2 | 31.9 | 28.2 | 31.9 | N var. | Overcast. Showery. |\n| 11 | 29.523 | 34.2 | 29.525 | 36.2 | 30 | 30.6 | 34.9 | 28.0 | 40.7 | SW | Strong fog. Violent wind, with rain in the night. |\n| 12 | 29.763 | 37.6 | 29.719 | 39.3 | 37 | 37.6 | 42.7 | 29.8 | 46.2 | 0.230 SW | Lowering. Strong wind, with rain. |\n| O | 29.149 | 43.4 | 29.278 | 44.4 | 47 | 46.6 | 45.8 | 36.8 | 46.6 | 0.569 SSW | Overcast and foggy. Evening showery. |\n| 14 | 29.564 | 43.3 | 29.543 | 44.3 | 41 | 40.7 | 41.3 | 39.8 | 41.8 | SW | Overcast & hazy. Snow in the evening. |\n| 15 | 29.721 | 41.3 | 29.790 | 41.7 | 36 | 36.4 | 36.2 | 35.2 | 36.4 | 0.242 N | Overcast and foggy. |\n| O | 29.547 | 39.3 | 29.806 | 40.2 | 36 | 36.3 | 38.2 | 32.7 | 43.2 | 0.472 E | Overcast and foggy. |\n| 17 | 29.922 | 41.2 | 29.944 | 43.8 | 44 | 44.0 | 47.8 | 35.4 | 50.0 | 0.208 ESE | Overcast and foggy. Rain. |\n| O | 30.124 | 47.8 | 30.177 | 51.0 | 51 | 50.6 | 53.7 | 43.3 | 54.5 | 0.128 S | Overcast and foggy. |\n| 19 | 30.263 | 49.8 | 30.244 | 52.8 | 46 | 47.7 | 52.8 | 45.8 | 53.8 | 0.005 SSW | Fine and cloudless—hazy. |\n| O | 30.303 | 51.3 | 30.295 | 51.9 | 50 | 50.3 | 51.2 | 46.4 | 51.2 | SW | A.M. Cloudy. P.M. Fine and nearly cloudless. |\n| 21 | 30.274 | 48.8 | 30.235 | 50.8 | 43 | 43.0 | 49.3 | 41.7 | 49.3 | SW | A.M. Lightly overcast. P.M. Clear and cloudless. |\n| O | 30.113 | 50.0 | 30.149 | 52.5 | 49 | 49.2 | 52.7 | 42.3 | 53.4 | SSW | Fine—light clouds. |\n| 23 | 30.267 | 49.4 | 30.282 | 51.8 | 47 | 46.8 | 51.2 | 43.2 | 51.2 | WSW | A.M. Dull—dissolving clouds. P.M. Clear and cloudless. |\n| 24 | 30.367 | 49.4 | 30.334 | 51.7 | 46 | 46.6 | 50.8 | 43.3 | 50.8 | SW | Overcast and hazy. |\n| O | 30.206 | 51.8 | 30.127 | 52.8 | 50 | 49.7 | 51.2 | 46.1 | 51.5 | S | Lowering—light haze. |\n| 26 | 30.261 | 49.2 | 30.321 | 51.3 | 43 | 42.7 | 48.3 | 41.2 | 48.3 | 0.018 W | Fine and cloudless—light haze. |\n| O | 30.398 | 48.6 | 30.409 | 51.6 | 44 | 44.4 | 50.0 | 41.9 | 50.0 | WSW | A.M. Fine and nearly cloudless. P.M. Dull—hazy. |\n| 28 | 30.432 | 45.8 | 30.374 | 47.1 | 39 | 39.2 | 41.1 | 36.7 | 42.8 | WSW | Overcast and foggy. |\n| O | 30.215 | 46.6 | 30.174 | 48.0 | 43 | 43.7 | 45.2 | 38.5 | 45.3 | S | A.M. Foggy. P.M. Fine and cloudless. |\n| 30 | 30.100 | 45.7 | 30.055 | 47.7 | 43 | 42.7 | 45.3 | 38.8 | 45.3 | SSW | Fine—hazy. |\n| O | 30.002 | 45.7 | 29.968 | 47.8 | 43 | 42.8 | 47.8 | 38.2 | 49.0 | SSE | Overcast. Rain. |\n\n**Mean**\n\n| Mean | Mean | Mean | Mean | Mean | Mean | Mean | Mean | Sum |\n|------|------|------|------|------|------|------|------|-----|\n| 29.939 | 44.1 | 29.933 | 45.6 | 40.7 | 41.4 | 43.8 | 37.5 | 3.159 |\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. ................. { 9 A.M. 3 P.M. } { 29.912 29.902 }\n\n### OBSERVANDA.\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge...................... = 83 feet 2½ in.\n\n.......................................................... above the mean level of the Sea (presumed about) .......... = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House ....................... = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit's Scale.\n\nThe Barometer is divided into inches and decimals.\n| 1828. February | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M., in Degrees of Fahr. | External Thermometer | Rain, in inches Run off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks |\n|---------------|----------------|-----------------|----------------------------------------|---------------------|-------------------------------|-----------------------------|---------|\n| | Barom. Attach. Therm. | Barom. Attach. Therm. | Fahrenheit | Self-registering | Lowest | Highest | Sum |\n| O 1 | 29.942 | 49.8 | 30.057 | 53.3 | 49 | 49.8 | 50.8 | 43.4 | 52.2 | 0.139 | SSW | A.M. Lowering and showery. P.M. Fine—lightly overcast. |\n| h 2 | 30.124 | 49.9 | 30.103 | 51.2 | 47 | 46.8 | 48.0 | 45.2 | 48.0 | SW | Lightly overcast—hazy. |\n| O 3 | 30.439 | 46.8 | 30.477 | 48.3 | 37 | 39.2 | 45.2 | 37.7 | 46.7 | W | Fine and cloudless—hazy. |\n| D 4 | 30.250 | 47.3 | 30.263 | 49.9 | 47 | 47.4 | 51.2 | 38.3 | 51.2 | 0.019 | WSW | Lightly overcast—hazy. |\n| d 5 | 30.192 | 49.7 | 30.140 | 51.6 | 48 | 48.6 | 51.3 | 46.8 | 51.3 | SW | Lowering. |\n| O 6 | 30.054 | 50.6 | 30.010 | 52.3 | 48 | 48.7 | 52.8 | 47.2 | 52.8 | 0.012 | SW | Cloudy. |\n| u 7 | 29.944 | 50.4 | 29.901 | 52.6 | 45 | 45.2 | 49.2 | 44.5 | 49.8 | SW | Foggy—rain. |\n| O 8 | 29.911 | 49.3 | 29.831 | 47.3 | 41 | 42.3 | 45.3 | 41.2 | 45.8 | 0.097 | N | A.M. Cloudless. P.M. Lightly overcast. |\n| h 9 | 29.660 | 45.8 | 29.681 | 46.2 | 41 | 45.4 | 40.3 | 39.3 | 40.3 | 0.039 | N | Overcast—rain. |\n| O 10 | 29.812 | 42.7 | 29.772 | 43.6 | 36 | 36.2 | 36.9 | 34.4 | 36.9 | 0.059 | N | Lowering. |\n| D 11 | 29.454 | 38.2 | 29.602 | 40.6 | 32 | 33.2 | 33.2 | 30.2 | 34.2 | NNE | Continued fall of snow. |\n| d 12 | 29.955 | 35.8 | 29.983 | 37.2 | 30 | 30.8 | 31.7 | 29.0 | 31.7 | 0.186 | NNW | Overcast. Fall of snow A.M. |\n| O 13 | 30.115 | 35.0 | 30.098 | 36.3 | 30 | 30.8 | 32.3 | 28.8 | 32.3 | NNE | Overcast and hazy. |\n| u 14 | 29.723 | 36.8 | 29.489 | 37.6 | 31 | 33.4 | 34.8 | 30.0 | 34.8 | SE | Overcast. Fall of snow P.M. |\n| O 15 | 29.667 | 38.2 | 29.742 | 41.1 | 34 | 34.7 | 39.4 | 31.2 | 39.4 | W | Fine and cloudless—hazy. |\n| h 16 | 29.872 | 38.0 | 29.836 | 39.8 | 32 | 32.6 | 38.0 | 29.8 | 38.0 | 0.086 | WSW | Overcast.—Strong haze A.M. |\n| O 17 | 29.721 | 37.8 | 29.632 | 40.6 | 32 | 33.8 | 39.2 | 30.2 | 39.2 | SE | A.M. Cloudless. P.M. Lightly overcast. |\n| D 18 | 29.394 | 37.4 | 29.297 | 42.0 | 34 | 34.6 | 42.2 | 30.8 | 42.3 | E | Dull—light clouds. |\n| d 19 | 29.303 | 39.7 | 29.333 | 42.6 | 36 | 38.7 | 45.9 | 33.8 | 45.9 | 0.078 | WSW | Fine—light clouds. |\n| O 20 | 29.277 | 41.8 | 29.202 | 45.3 | 41 | 42.8 | 47.4 | 37.3 | 47.7 | SSE | Fine and clear—light clouds. Snow in the evening. |\n| u 21 | 29.017 | 43.6 | 28.971 | 47.0 | 40 | 40.3 | 46.8 | 39.2 | 46.8 | 0.011 | E | Lowering. |\n| O 22 | 29.004 | 46.3 | 29.044 | 48.7 | 43 | 42.8 | 45.3 | 38.8 | 47.5 | 0.053 | SE | Lowering. |\n| h 23 | 29.292 | 46.1 | 29.418 | 46.7 | 43 | 42.7 | 41.8 | 41.3 | 42.7 | N | Overcast and foggy. Light rain A.M. |\n| O 24 | 29.771 | 44.8 | 29.797 | 47.3 | 41 | 41.6 | 46.3 | 37.7 | 49.7 | 0.033 | WSW | A.M. Overcast. P.M. Fine—light clouds. |\n| D 25 | 29.857 | 48.1 | 29.867 | 50.2 | 49 | 49.8 | 51.6 | 41.0 | 52.0 | S | Lowering—light breeze—showery. |\n| d 26 | 30.029 | 51.3 | 30.012 | 53.3 | 51 | 52.2 | 55.0 | 48.8 | 55.2 | 0.090 | S | Lowering. |\n| O 27 | 30.115 | 52.3 | 30.144 | 54.3 | 51 | 51.3 | 53.2 | 49.1 | 53.7 | SSE | Overcast. |\n| u 28 | 30.322 | 52.3 | 30.329 | 54.3 | 49 | 48.9 | 50.3 | 47.2 | 50.7 | N | Overcast and foggy. |\n| O 29 | 30.240 | 52.7 | 30.257 | 54.8 | 50 | 50.3 | 53.6 | 41.7 | 53.6 | NNW | Cloudy—light breeze. |\n\nMean Mean Mean Mean Mean Mean Mean Mean Sum\n\n29.809 44.8 29.803 46.7 40.9 41.9 44.8 38.4 45.2 0.902\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr.\n\n9 A.M. 3 P.M.\n\n29.780 29.769\n\nOBSERVANDA.\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge = 83 feet 2½ in.\n\nabove the mean level of the Sea (presumed about) = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit's Scale.\n\nThe Barometer is divided into inches and decimals.\n| 1828. March | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks |\n|-------------|-----------------|-----------------|----------------------------------------|----------------------|----------------------------------|--------------------------|---------|\n| | Barom. Attach. Therm. | Barom. Attach. Therm. | Fahrenheit. | Self-registering. | Lowest. Highest. | | |\n| O h 1 | 30.290 | 50.0 | 30.175 | 50.7 | 44 | 44.2 | 47.9 | N | Overcast—light fog. |\n| ⊙ 2 | 30.061 | 50.3 | 30.057 | 51.3 | 45 | 46.5 | 48.2 | NNE | Cloudy—light wind. |\n| D 3 | 30.006 | 47.7 | 29.897 | 49.6 | 43 | 42.8 | 47.8 | SSW | Cloudy and hazy. |\n| δ 4 | 29.974 | 47.8 | 29.858 | 52.0 | 44 | 43.9 | 49.2 | NW | Cloudy—light fog. |\n| χ 5 | 29.689 | 47.8 | 29.682 | 45.1 | 39 | 42.3 | 42.0 | NW | Brisk wind. A.M. Fine and nearly cloudless. P.M. Cloudy. |\n| η 6 | 29.900 | 40.0 | 29.978 | 42.6 | 22 | 33.9 | 38.8 | N | Fine—cloudy—light wind. |\n| Φ 7 | 30.235 | 40.2 | 30.174 | 44.3 | 27 | 33.7 | 41.8 | SW | A.M. Fine—hazy. P.M. Overcast. |\n| h 8 | 30.082 | 44.3 | 30.151 | 48.3 | 46 | 46.8 | 54.7 | WSW | Overcast and foggy. |\n| ⊙ 9 | 30.262 | 48.3 | 30.210 | 51.0 | 48 | 48.2 | 55.8 | WSW | A.M. Overcast. P.M. Fine—light clouds. |\n| D 10 | 30.242 | 49.8 | 30.307 | 58.3 | 48 | 49.2 | 56.9 | WNW | A.M. Lowering. P.M. Fine—light clouds. |\n| δ 11 | 30.260 | 49.6 | 30.226 | 53.2 | 46 | 46.0 | 54.0 | SW | A.M. Overcast and foggy. P.M. Fine—light clouds. |\n| χ 12 | 30.078 | 50.7 | 30.025 | 53.6 | 48 | 48.2 | 53.8 | S | A.M. Overcast. P.M. Fine—hazy. |\n| η 13 | 30.135 | 52.6 | 30.131 | 55.8 | 50 | 50.3 | 59.5 | SW | Clear and cloudless. |\n| Φ 14 | 30.284 | 56.0 | 30.276 | 58.6 | 53 | 54.0 | 59.3 | SW | Fine and cloudless. |\n| h 15 | 30.368 | 54.3 | 30.358 | 58.6 | 48 | 48.1 | 59.6 | SW | Fine—light clouds. |\n| ⊙ 16 | 30.346 | 55.8 | 30.248 | 59.6 | 52 | 52.7 | 60.8 | WSW | Fine—cloudy. Showery at night. |\n| D 17 | 30.169 | 56.3 | 30.140 | 54.5 | 53 | 53.4 | 56.6 | NW | Lowering. |\n| δ 18 | 30.074 | 53.5 | 30.053 | 57.7 | 50 | 50.6 | 55.8 | NW | Fine—lightly overcast. |\n| χ 19 | 29.462 | 54.0 | 29.522 | 55.3 | 43 | 50.3 | 51.7 | WSW | Fine—light clouds—strong brisk wind. |\n| η 20 | 29.439 | 50.7 | 29.262 | 54.3 | 45 | 46.8 | 48.7 | WSW | Lowering. Rain. |\n| Φ 21 | 29.065 | 51.7 | 28.998 | 53.8 | 46 | 46.2 | 48.7 | SSW | Cloudy. At 3 P.M. Hail storm, with thunder. |\n| h 22 | 29.294 | 49.3 | 29.281 | 51.2 | 34 | 43.5 | 47.9 | WSW | Fine and clear—cloudy. Showery P.M. |\n| ⊙ 23 | 29.419 | 46.6 | 29.449 | 49.3 | 36 | 40.6 | 46.8 | WSW | Fine, and nearly cloudless. |\n| D 24 | 29.655 | 45.8 | 29.685 | 48.3 | 36 | 41.8 | 46.3 | N | Fine—cloudy. |\n| δ 25 | 29.806 | 44.6 | 29.808 | 47.2 | 35 | 43.3 | 42.3 | N | Lowering—brisk wind. Rain and hail P.M. |\n| χ 26 | 29.561 | 41.3 | 29.791 | 45.6 | 35 | 35.7 | 44.3 | WSW | Fine—light clouds—hazy. |\n| η 27 | 29.465 | 44.4 | 29.430 | 49.3 | 43 | 43.8 | 51.2 | ESE | Lowering. Showery. |\n| Φ 28 | 29.476 | 46.7 | 29.594 | 47.5 | 42 | 41.7 | 43.4 | N | Overcast—brisk wind. Rain. |\n| h 29 | 29.813 | 44.3 | 29.822 | 47.3 | 39 | 39.2 | 42.8 | WSW | Cloudy and hazy. |\n| ⊙ 30 | 29.988 | 45.0 | 30.040 | 47.3 | 41 | 41.7 | 45.7 | N | Lowering. |\n| D 31 | 30.280 | 43.7 | 30.292 | 47.3 | 41 | 41.7 | 47.8 | E | Fine—light clouds—hazy. |\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. ............... { 9 A.M. 3 P.M. }\nMean 29.919 Mean 48.5 Mean 29.899 Mean 51.2 Mean 42.6 Mean 44.8 Mean 50.0 Mean 51.0 Mean 0.751\n\nOBSERVANDA.\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge......................... = 83 feet 2½ in.\n..............................................................above the mean level of the Sea (presumed about) ............ = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House.......................... = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit’s Scale.\n\nThe Barometer is divided into inches and decimals.\n| 1828. April | 9 o'clock, A.M. | 3 o'clock P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks |\n|------------|----------------|----------------|----------------------------------------|---------------------|----------------------------------|-----------------------------|---------|\n| | Barom. Attach. Therm. | Barom. Attach. Therm. | Fahrenheit | Self-registering | Lowest | Highest | |\n| 1 | 30.387 44.0 | 30.162 48.2 | 37 42.3 | 48.2 | 34.2 | 48.8 | ESE | A.M. Cloudless. P.M. Lowering. |\n| 2 | 30.031 46.3 | 30.029 48.5 | 44 45.0 | 46.5 | 39.2 | 47.2 | N | A.M. Fine—light clouds. P.M. Overcast. |\n| 3 | 30.095 44.2 | 30.034 47.2 | 36 41.2 | 44.6 | 36.4 | 44.7 | N | Cloudy—brisk wind. |\n| 4 | 29.938 43.8 | 29.943 45.8 | 36 44.2 | 43.0 | 36.2 | 43.8 | N | Lowering—brisk wind. |\n| 5 | 29.798 43.8 | 29.682 48.2 | 36 44.6 | 50.3 | 32.8 | 51.3 | W | Lowering—Showery P.M. |\n| 6 | 29.560 47.8 | 29.597 49.9 | 41 46.8 | 47.9 | 38.9 | 50.2 | 0.186 | WNW | A.M. Fine—cloudy. P.M. Lowering. |\n| 7 | 29.352 46.2 | 29.334 49.2 | 43 43.7 | 50.3 | 40.2 | 50.4 | 0.075 | ESE | Cloudy. Rain. |\n| 8 | 29.337 46.8 | 29.322 49.3 | 43 44.2 | 48.7 | 38.3 | 48.7 | 0.136 | E | A.M. Lowering. P.M. Fine—cloudy. |\n| 9 | 29.312 47.7 | 29.400 52.4 | 44 46.7 | 54.3 | 41.6 | 55.3 | S | A.M. Lowering—light breeze. P.M. Clear—cloudy. |\n| 10 | 29.388 49.7 | 29.415 52.8 | 49 49.7 | 52.7 | 41.8 | 57.4 | 0.025 | S | A.M. Cloudy and showery. P.M. Fine—broken clouds. |\n| 11 | 29.752 52.1 | 29.739 53.8 | 44 50.4 | 55.4 | 40.3 | 56.9 | 0.047 | WSW | A.M. Clear. P.M. Lightly overcast. |\n| 12 | 29.664 55.0 | 29.619 56.4 | 52 55.7 | 56.4 | 48.2 | 57.7 | SW | Lowering—Showery. |\n| 13 | 29.501 56.2 | 29.506 57.8 | 46 54.0 | 56.8 | 49.3 | 57.2 | 0.019 | SSW | Fine and clear—light clouds and strong wind. |\n| 14 | 29.783 56.2 | 29.765 58.2 | 49 53.3 | 56.4 | 43.8 | 59.0 | S | A.M. Fine. P.M. Lowering & showery. |\n| 15 | 29.782 53.4 | 29.648 56.4 | 51 51.3 | 53.7 | 45.6 | 55.8 | 0.158 | SSE | Lowering—Frequent showers and strong wind. |\n| 16 | 29.630 57.4 | 29.445 56.8 | 52 55.4 | 50.4 | 46.4 | 55.4 | 0.039 | S var. | A.M. Fine—brisk wind. P.M. Overcast—rain. |\n| 17 | 29.423 56.4 | 29.378 58.0 | 50 54.6 | 56.8 | 45.8 | 57.2 | 0.028 | S var. | Brisk wind.—A.M. Fine and clear. P.M. Cloudy—rain. |\n| 18 | 29.344 55.6 | 29.400 56.7 | 51 51.5 | 52.3 | 43.8 | 54.2 | 0.444 | SSE | Dark and overcast. Rain. |\n| 19 | 29.537 54.7 | 29.600 55.6 | 51 50.8 | 52.7 | 47.2 | 52.7 | 0.350 | NE | Overcast and foggy. |\n| 20 | 29.836 53.8 | 29.840 55.8 | 51 51.7 | 51.6 | 46.4 | 51.8 | 0.078 | N | Overcast and hazy. |\n| 21 | 29.704 52.0 | 29.662 52.8 | 47 47.8 | 47.8 | 44.2 | 48.7 | 0.014 | NNW | Cloudy—Showery A.M. |\n| 22 | 29.639 50.0 | 29.663 51.2 | 43 44.3 | 46.3 | 39.8 | 46.8 | 0.058 | WSW | Lowering—Light showers P.M. |\n| 23 | 29.797 49.7 | 29.819 53.0 | 45 47.7 | 54.2 | 42.7 | 54.2 | 0.019 | W | Cloudy.—A.M. Hazy. P.M. Clear. Evening showery. |\n| 24 | 29.782 54.8 | 29.839 56.3 | 46 53.3 | 59.0 | 46.0 | 59.5 | 0.200 | W | Fine and clear—light clouds. |\n| 25 | 29.869 55.4 | 29.811 58.7 | 53 53.7 | 56.3 | 49.9 | 58.6 | 0.011 | SSW | Lowering—light wind.—In the evening, rain with strong wind. |\n| 26 | 29.965 57.4 | 30.060 58.7 | 42 52.4 | 59.7 | 44.0 | 60.2 | 0.139 | NW | Very fine and clear—brisk wind. |\n| 27 | 30.282 58.2 | 30.263 59.6 | 49 54.4 | 61.1 | 43.0 | 63.3 | SSW | Very fine—clear and cloudless—gentle wind. |\n| 28 | 30.290 60.8 | 30.270 61.3 | 52 59.3 | 66.6 | 46.8 | 67.7 | S | Fine and clear—light clouds—gentle wind. |\n| 29 | 30.257 64.7 | 30.209 63.9 | 52 67.3 | 68.8 | 46.8 | 70.7 | SSE | Fine and clear—light clouds. |\n| 30 | 30.316 61.3 | 30.356 64.8 | 59 59.7 | 61.8 | 54.2 | 63.7 | N | Overcast—dissolving clouds—brisk wind. |\n\nMean Mean Mean Mean Mean Mean Mean Mean Sum\n\n29.775 52.5 29.757 54.6 46.5 50.6 53.7 43.1 55.0 2.026\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr.\n\n9 A.M. 3 P.M.\n\n29.727 29.703\n\nOBSERVANDA.\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge......................... = 83 feet 2½ in.\n\nabove the mean level of the Sea (presumed about) ............... = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House ....................... = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit’s Scale.\n\nThe Barometer is divided into inches and decimals.\n| 1828. May | 9 o'clock, A.M. | 3 o'clock P.M. | Dew Point at 9 A.M., in degrees of Fahr. | External Thermometer. | Rain, in inches, Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks |\n|-----------|----------------|----------------|----------------------------------------|----------------------|-------------------------------|-----------------------------|---------|\n| | Barom. Attach. Therm. | Barom. Attach. Therm. | Fahrenheit. Self-registering. Lowest. Highest. | 9 A.M. 3 P.M. | | |\n| 1 | 30.384 58.8 | 30.314 62.1 | 52 52.4 61.7 46.8 62.7 | E | A.M. Strong haze. P.M. Fine and clear—nearly cloudless. |\n| 2 | 30.260 57.3 | 30.182 62.0 | 51 51.4 57.8 44.3 60.4 | ESE | Fine—light clouds. Lowering. Rain. |\n| 3 | 30.017 56.5 | 29.994 60.3 | 53 53.6 56.4 48.2 58.5 0.014 | ESE | Fine and clear.—A.M. Heavy shower. P.M. Distant thunder. |\n| 4 | 29.788 59.4 | 29.719 61.7 | 55 56.8 60.8 51.6 63.3 0.042 | S | Fine—cloudy. |\n| 5 | 29.707 54.7 | 29.683 58.8 | 49 54.2 56.8 45.8 57.8 0.081 | WNW | A.M. Fine and cloudless. P.M. Thunder and lightning at 2h. |\n| 6 | 29.748 60.7 | 29.742 59.3 | 45 53.6 57.7 43.8 60.8 | SSW | A.M. Overcast. P.M. Fine—cloudy. |\n| 7 | 29.849 54.9 | 29.851 59.3 | 49 50.5 58.6 45.4 59.3 | N | A.M. Overcast. P.M. Fine and clear—gentle wind. |\n| 8 | 29.883 54.3 | 29.901 59.0 | 49 48.9 58.3 46.2 59.5 0.186 | N | Fine—lightly overcast. |\n| 9 | 30.070 55.9 | 30.114 59.6 | 46 51.5 59.4 42.7 60.5 | W | A.M. Fine and cloudless. P.M. Slightly lowering. |\n| 10 | 30.179 59.6 | 30.136 62.0 | 45 58.0 61.6 45.0 64.3 | S | A.M. Lowering. P.M. Fine—light clouds. |\n| 11 | 30.085 59.4 | 30.060 61.8 | 55 57.5 62.8 51.2 63.8 | WSW | Fine & clear—nearly cloudless—light wind. |\n| 12 | 30.238 61.2 | 30.257 62.6 | 46 58.7 63.3 48.2 64.7 | N | Fine and cloudless—light haze. |\n| 13 | 30.316 62.4 | 30.240 62.3 | 48 58.3 64.0 46.7 64.8 | SSW | Fine and clear—fleecy clouds. |\n| 14 | 30.192 60.3 | 30.127 63.6 | 56 58.6 66.4 50.0 68.0 | NNE | Fine—light stretching clouds. |\n| 15 | 30.070 61.8 | 30.029 64.3 | 51 60.7 66.2 47.0 66.4 | E | Fine—light clouds. Thunder at 7h. |\n| 16 | 29.883 63.8 | 29.860 67.3 | 59 64.3 67.3 56.0 69.5 | NE | Fine and cloudless—light wind. |\n| 17 | 29.832 66.8 | 29.811 66.7 | 54 63.2 66.8 55.9 67.3 | E | Clear and cloudless—light wind. |\n| 18 | 29.816 63.7 | 29.826 64.5 | 51 61.7 61.9 55.0 63.7 | E | Clear and cloudless—light wind. |\n| 19 | 29.832 64.6 | 29.829 63.2 | 46 62.2 62.7 46.8 63.7 | ESE | A.M. Fine. P.M. Cloudy. |\n| 20 | 29.803 61.4 | 29.760 63.2 | 50 59.4 60.7 45.0 66.2 | E | Cloudy. Light showers. |\n| 21 | 29.856 57.7 | 29.555 62.8 | 54 55.8 61.7 50.0 63.1 | ENE | Lowering. Light showers. |\n| 22 | 29.574 55.7 | 29.569 60.3 | 52 53.4 58.7 51.0 59.5 0.036 | E | Fine—cloudy—light wind. |\n| 23 | 29.611 60.3 | 29.593 63.0 | 49 57.7 62.1 49.8 62.6 0.014 | NNE | A.M. Heavy rain, early. Fine & clear. |\n| 24 | 29.481 61.3 | 29.422 65.0 | 54 58.8 63.8 55.1 66.6 0.294 | S | P.M. Lowering, strong wind, showery. |\n| 25 | 29.704 63.7 | 29.813 64.3 | 55 61.7 64.0 55.6 65.4 0.041 | SW | Fine and clear—light clouds—brisk wind. |\n| 26 | 29.756 63.3 | 29.635 65.2 | 54 62.5 65.0 53.6 66.8 | ESE | Cloudy—light wind. |\n| 27 | 29.601 65.3 | 29.552 65.8 | 53 64.5 61.8 52.9 68.6 | ESE | A.M. Fine and clear. P.M. Cloudy—brisk wind. Rain. |\n| 28 | 29.554 62.8 | 29.649 63.8 | 54 59.3 61.8 53.3 64.3 0.353 | SW | Cloudy—light wind. |\n| 29 | 29.702 63.9 | 29.704 65.4 | 56 62.3 65.3 56.3 67.2 0.033 | S | Fine—brisk wind. Showery. |\n| 30 | 29.950 67.4 | 29.959 68.2 | 53 65.3 70.4 55.3 72.1 | N | Fine—cloudy. Rain at night. |\n| 31 | 29.840 63.8 | 29.792 67.2 | 60 60.5 67.1 56.1 68.4 0.213 | SSW | A.M. Lowering—light wind. P.M. Fine—cloudy. |\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. .......... { 9 A.M. 3 P.M. }\n{ 29.820 29.784 }\n\n**OBSERVANDA.**\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge ......................... = 83 feet 2½ in.\n.......................................................... above the mean level of the Sea (presumed about) ............... = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House ......................... = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit’s Scale.\n\nThe Barometer is divided into inches and decimals.\n## METEOROLOGICAL JOURNAL FOR JUNE, 1828.\n\n| 1828. June | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks |\n|------------|-----------------|-----------------|----------------------------------------|----------------------|----------------------------------|-----------------------------|---------|\n| | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. | Self-registering. | Highest. |\n| 1 | 30.066 | 67.8 | 30.069 | 67.0 | 51 | 63.7 | 69.3 | 52.0 | 70.0 | WSW | Fine—light breeze. |\n| 2 | 29.958 | 67.9 | 29.924 | 66.6 | 51 | 62.3 | 65.4 | 55.8 | 67.8 | 0.050 | Fine and clear—cloudy—light breeze. |\n| 3 | 29.994 | 63.4 | 29.973 | 64.7 | 55 | 59.8 | 61.8 | 51.5 | 64.3 | 0.033 | Heavy shower P.M. |\n| 4 | 29.621 | 61.7 | 29.494 | 64.0 | 57 | 57.6 | 61.7 | 56.1 | 62.4 | 0.250 | SW | Lowering. |\n| 5 | 29.388 | 61.2 | 29.489 | 62.6 | 47 | 55.7 | 62.9 | 49.8 | 63.2 | 0.583 | NW var. |\n| 6 | 29.656 | 63.3 | 29.708 | 63.7 | 50 | 60.3 | 63.3 | 51.7 | 64.8 | 0.033 | Fine and clear—light wind. |\n| 7 | 30.003 | 57.3 | — | — | 45 | 54.5 | — | 49.3 | 61.0 | 0.139 | W | Fine and clear—cloudy. At 28m. |\n| 8 | 30.189 | 60.9 | 30.194 | 63.3 | 46 | 60.9 | 63.3 | 51.1 | 65.6 | WSW | Fine—light breeze. |\n| 9 | 30.247 | 62.0 | 30.226 | 65.3 | 53 | 61.7 | 66.8 | 52.7 | 67.7 | W | Fine—cloudy. |\n| 10 | 30.285 | 64.8 | 30.260 | 66.3 | 56 | 61.4 | 66.9 | 51.7 | 67.7 | NW | Fine—cloudy. |\n| 11 | 30.241 | 64.6 | 30.232 | 68.3 | 57 | 63.8 | 68.9 | 57.7 | 71.5 | W | Fine—cloudy. |\n| 12 | 30.242 | 63.7 | 30.247 | 66.2 | 51 | 62.4 | 63.5 | 58.7 | 65.3 | NNW | Cloudy. |\n| 13 | 30.281 | 70.7 | 30.245 | 68.3 | 53 | 63.8 | 69.7 | 53.8 | 72.7 | N | Clear and cloudless—light wind. |\n| 14 | 30.268 | 70.0 | 30.230 | 68.0 | 54 | 68.3 | 67.8 | 52.3 | 69.8 | W | Clear and cloudless—light wind. |\n| 15 | 30.106 | 63.4 | 30.081 | 67.8 | 62 | 62.7 | 68.3 | 55.6 | 70.2 | E | A.M. Cloudy. P.M. Fine and clear. |\n| 16 | 29.973 | 67.7 | 29.905 | 67.4 | 63 | 66.8 | 64.3 | 59.8 | 71.6 | E | Brisk wind. |\n| 17 | 29.590 | 68.7 | 29.547 | 69.4 | 63 | 70.7 | 68.6 | 57.9 | 72.3 | NE | Fine—cloudy—brisk wind. |\n| 18 | 29.424 | 64.8 | 29.560 | 68.8 | 59 | 59.7 | 68.6 | 57.7 | 69.8 | 0.064 | Fine—cloudy. Light showers. |\n| 19 | 29.962 | 67.4 | 29.994 | 69.7 | 61 | 63.7 | 69.8 | 59.3 | 71.7 | S | A.M. Lowering. P.M. Fine.—Light wind. |\n| 20 | 30.009 | 66.7 | 29.989 | 70.2 | 60 | 66.0 | 70.0 | 60.6 | 70.8 | S | Lightly overcast—brisk wind. |\n| 21 | 29.857 | 63.8 | 29.855 | 67.8 | 59 | 59.1 | 65.8 | 58.2 | 68.4 | 0.605 | A.M. Heavy rain, early. P.M. Clear—cloudy—light wind. |\n| 22 | 29.923 | 68.3 | 29.950 | 67.9 | 57 | 65.0 | 62.6 | 55.9 | 69.8 | 0.028 | Cloudy. Heavy showers and frequent thunder at 23h. P.M. |\n| 23 | 30.091 | 71.3 | 30.110 | 69.3 | 58 | 64.7 | 68.7 | 53.8 | 69.6 | 0.583 | Fine and clear—cloudy—light wind. |\n| 24 | 30.291 | 63.8 | 30.297 | 67.6 | 58 | 62.8 | 69.7 | 55.7 | 71.5 | N | Fine—lightly overcast. |\n| 25 | 30.328 | 73.3 | 30.297 | 72.6 | 57 | 70.2 | 72.7 | 56.3 | 76.6 | SW | Fine and clear. A.M. Cloudless. |\n| 26 | 30.385 | 71.3 | 30.346 | 72.7 | 60 | 70.7 | 77.6 | 59.2 | 78.4 | NW | P.M. Cloudy. |\n| 27 | 30.272 | 75.7 | 30.182 | 74.2 | 61 | 74.8 | 76.7 | 62.7 | 78.3 | E | Fine—light clouds. |\n| 28 | 30.095 | 74.8 | 30.045 | 75.3 | 65 | 73.7 | 73.9 | 59.6 | 77.8 | E | Clear and cloudless—light wind. |\n| 29 | 29.949 | 66.7 | 29.948 | 72.9 | 64 | 66.3 | 74.3 | 59.3 | 76.8 | N | A.M. Fine and cloudless. P.M. Lightly overcast—light wind. |\n| 30 | 30.015 | 76.7 | 29.967 | 74.3 | 60 | 68.7 | 75.9 | 60.3 | 78.2 | N | Fine—light clouds—gentle wind. |\n| Mean | Mean | Mean | Mean | Mean | Mean | Mean | Mean | Mean | Sum | | Fine and clear—light clouds. |\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. ................. { 9 A.M. 3 P.M. }\n{ 29.938 29.922 }\n\n### OBSERVANDA.\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge ...................... = 83 feet 2½ in.\n................................................................. above the mean level of the Sea (presumed about) = 95 feet.\n\nThe external Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House ....................... = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit's Scale.\n\nThe Barometer is divided into inches and decimals.", "source": "olmocr", "added": "2026-01-12", "created": "2026-01-12", "metadata": { "Source-File": "/home/jic823/projects/def-jic823/royalsociety/pdfs/107856.pdf", "olmocr-version": "0.3.4", "pdf-total-pages": 8, "total-input-tokens": 14154, "total-output-tokens": 16784, "total-fallback-pages": 0 }, "attributes": { "pdf_page_numbers": [ [ 0, 0, 1 ], [ 0, 154, 2 ], [ 154, 9756, 3 ], [ 9756, 15004, 4 ], [ 15004, 22474, 5 ], [ 22474, 27361, 6 ], [ 27361, 32078, 7 ], [ 32078, 41133, 8 ] ], "primary_language": [ "en", "en", "en", "en", "en", "en", "en", "en" ], "is_rotation_valid": [ true, true, true, true, true, true, true, true ], "rotation_correction": [ 0, 0, 0, 0, 0, 0, 0, 0 ], "is_table": [ false, false, true, true, true, true, true, true ], "is_diagram": [ false, false, false, false, false, false, false, false ] }, "jstor_metadata": { "identifier": "jstor-107856", "title": "Meteorological Journal, Kept by the Assistant Secretary at the Apartments of the Royal Society, by Order of the President and Council", "authors": null, "year": 1828, "volume": "118", "journal": "Philosophical Transactions of the Royal Society of London", "page_count": 8, "jstor_url": "https://www.jstor.org/stable/107856" } }